Liquid cosmetic case

ABSTRACT

A liquid cosmetic case configured to allow liquid contents to be discharged through opening/closing a valve nozzle according to a rotation. The liquid cosmetic case includes: a body configured such that liquid contents are discharged through a discharging hole; a container inserted into the body through a lower end opening portion of the body in a slidable manner and in which the liquid contents are filled; a container cap coupled to an upper end of the container; a valve unit connected to a discharging side of the body and the container cap to open/close the discharging hole and provided with an opening/closing member slided in association with the container and the container cap; and a rotary elevator part coupled to the lower end of the body, connected to a lower end of the container and thereby vertically moving the container when being rotated.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and the benefit of Korean Patent Application No. 10-2016-0098745, filed on Aug. 3, 2016, the disclosure of which is incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

The present invention relates to a cosmetic case, and more particularly, to a liquid cosmetic case configured to discharge a predetermined amount of liquid contents through opening/closing of a valve nozzle according to rotation thereof.

BACKGROUND OF THE INVENTION

In general, liquid cosmetics for facial makeup are contained in a case and used such that liquid contents in the case are discharged during makeup.

In related arts, a button-type or a rotary-type method is mainly used as a method for discharging liquid contents in a liquid cosmetic case.

In case of the button-type liquid cosmetic case, a button-type applicator is provided in an upper portion or a side portion of a case body, and liquid contents in the case are discharged through repeated operations of pushing a button. However, when the button is installed on the upper or side portion of the case body, there are limitations in that manufacturing costs are increased due to a complicated structure, and a large number of constituent elements, and a malfunction is caused.

In addition, when the button is applied in a lower portion of the case body as another example to the button-type liquid cosmetic case, there are limitations of inconvenience in use because the total length of the case body is increased, and contents are discharged due to a malfunction inside a bag in carrying.

The rotary-type cosmetic case has a structure in which the case is moved by being rotated like a screw in a body and thereby liquid contents in the case are discharged. However, since the rotary type case can be applied to only contents having viscosity, and the discharging portion of the case is always opened, the contents may leak regardless of user's intent, thereby having a problem in sealability.

PRIOR ART DOCUMENTS Patent Documents

(Patent Document 1) Korean Patent No. 10-0702621

SUMMARY OF THE INVENTION

Accordingly, the present invention provides a liquid cosmetic case which is configured to discharge liquid contents through opening/closing of a valve nozzle according to rotation thereof, thereby providing convenience in use and has improved sealability such that the contents are not leaked in non-use thereof.

In order to solve the technical problems, a liquid cosmetic case according to an exemplary embodiment of the present invention includes: a body configured such that liquid contents are discharged through a discharging hole; a container which is inserted into the body through a lower end opening portion of the body in a slidable manner and in which the liquid contents are filled; a container cap coupled to an upper end of the container; a valve unit connected to a discharging side of the body and the container cap to open/close the discharging hole and provided with an opening/closing member slided in association with the container and the container cap; and a rotary elevator part coupled to the lower end of the body, connected to a lower end of the container and thereby vertically moving the container when being rotated, wherein when the rotary elevator part is rotated to move the container upwardly, the opening/closing member may open a moving passage the contents and the contents may thereby be discharged, and when the container is downwardly moved, the opening/closing member may close the moving passage of the contents and the contents may thereby be prevented from being discharged.

The body may have a rotary coupling groove formed in an annular shape in a lower end of an inner side surface of the body, and the rotary elevator part may have a rotary coupling protrusion inserted and coupled into the rotary coupling groove and formed in an annular shape, wherein the rotary elevator part may be coupled to the body in a rotatable manner.

The rotary elevator part may be configured to have a circular tube shape having an opened upper portion, and a lower portion of the container may be inserted and coupled into the rotary elevator part through the opened portion of the rotary elevator part.

The container may include a cam part in which a plurality of inclining teeth are formed on a lower end of an outer side surface in a circumferential direction thereof at regular intervals, and the rotary elevator part may include a plurality of cam protrusions formed on a lower end of an inner circumferential surface thereof so as to correspond to the inclining teeth, wherein when the rotary elevator part is rotated, the container may be moved up and down as the cam protrusions move the cam part in an up-and-down direction through inclining contact with the inclining teeth.

The inclining teeth may be formed in a triangular shape having a downwardly inclining surface and a vertical surface with respect to a rotating direction of the rotary elevator part, wherein when the rotary elevator part is rotated in one direction, the container may be slided toward the discharging hole as the cam protrusions contact the downwardly inclining surface to thereby upwardly move the cam part, and the container may be slided toward an opposite side to the discharging hole as the cam protrusions pass the inclining surface and is positioned in parallel with the vertical surface to thereby downwardly move the cam part.

The inclining teeth may be formed in a triangular shape having a downwardly inclining surface and an upwardly inclining surface with respect to the rotating direction of the rotary elevator part, wherein when the rotary elevator part is rotated in both directions, the container may be slided toward the discharging hole as the cam protrusions contact the downwardly inclining surface to thereby upwardly move the cam part, and the container may be slided toward an opposite side to the discharging hole as the cam protrusions pass the downwardly inclining surface and contact the upwardly inclining surface to thereby downwardly move the cam part.

The valve unit may include: a valve nozzle installed to pass through the container cap in a vertically movable manner, having a nozzle hole formed therein and connected to the discharging hole, and having an introducing hole formed in a side portion thereof and connected to the nozzle hole so as to allow the contents to be introduced in the nozzle hole; a sliding member inserted and coupled into the outer side of the valve nozzle and slided toward the discharging hole by being pushed by the container cap when the container and the container cap are slided toward the discharging hole; an elastic member installed to elastically support the sliding member against the discharging hole side and returning the sliding member to an original state when force pushing the container and the container cap is released; and an opening/closing member coupled to an outer side of the valve nozzle in a movable manner, opening the introducing hole by being pushed toward the discharging hole by a pressure of the contents introduced between the container cap and the valve nozzle when the sliding member is slided toward the discharging hole, and closing the introducing hole while being returned to the original state by being pushed by the sliding member when the sliding member is returned to the original state.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view illustrating a liquid cosmetic case according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the liquid cosmetic case illustrated in FIG. 1.

FIG. 3 is a longitudinal cross-sectional view of the liquid cosmetic case illustrated in FIG. 1.

FIG. 4 is a perspective view of the body illustrated in FIG. 2.

FIG. 5 is a longitudinal cross-sectional view of the body illustrated in FIG. 4.

FIG. 6 is a perspective view of the container illustrated in FIG. 2.

FIG. 7 is a longitudinal cross-sectional view of the container illustrated in FIG. 6.

FIG. 8 is a side view illustrating portion A of FIG. 6.

FIG. 9 is a side view illustrating another example of portion A of FIG. 6.

FIG. 10 is a perspective view of the rotary elevator part illustrated in FIG. 2.

FIG. 11 is a longitudinal cross-sectional view of the rotary elevator part illustrated in FIG. 10.

FIG. 12 is a plan view of the rotary elevator part illustrated in FIG. 10.

FIG. 13 is a perspective view of the container cap illustrated in FIG. 2.

FIG. 14 is a longitudinal cross-sectional view of the container cap illustrated in FIG. 13.

FIG. 15 is a longitudinal cross-sectional view of the pressing holder illustrated in FIG. 2.

FIG. 16 is a perspective view of the valve nozzle illustrated in FIG. 2.

FIG. 17 is a longitudinal cross-sectional view of the valve nozzle illustrated in FIG. 16.

FIG. 18 is a longitudinal cross-sectional view of the sliding member illustrated in FIG. 2.

FIG. 19 is a side view of the opening/closing member illustrated in FIG. 2.

FIG. 20 is a longitudinal cross-sectional view of the opening/closing member illustrated in FIG. 19.

FIG. 21 is a longitudinal cross-sectional view of the connector illustrated in FIG. 2.

FIG. 22 is a cross-sectional view illustrating a state in which contents in a liquid cosmetic case according to an embodiment of the present invention are discharged.

FIG. 23 is a cross-sectional view illustrating a state in which the contents in a liquid cosmetic case according to an embodiment of the present invention are blocked.

DETAILED DESCRIPTION

Preferred embodiments of the present invention will be described below in more detail with reference to the accompanying drawings. Moreover, detailed descriptions related to well-known functions or configurations will be ruled out in order not to unnecessarily obscure subject matters of the present invention.

FIG. 1 is a perspective view illustrating a liquid cosmetic case according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the liquid cosmetic case illustrated in FIG. 1, and FIG. 3 is a longitudinal cross-sectional view of the liquid cosmetic case illustrated in FIG. 1.

As illustrated in FIGS. 1 to 3, a liquid cosmetic case according to an embodiment of the present invention may include a body 100, a container 200, a container cap 300, a pressing holder 400, a valve unit 500, a rotary elevator part 600, a brush 710, a brush holder 720, and a lid 800.

The body 100 is formed in a circular tube shape having an opened lower end such that liquid cosmetic contents are discharged through a discharging hole 111 formed in a closed upper central portion of the body 100.

The container 200 is formed in a circular tube shape having an opened upper end and liquid contents are filled therein. The opened upper end portion of the container 200 is inserted in the body 100 through the opened lower end of the body 100 in a slidable manner.

The container cap 300 is coupled through an undercut to the inside of the opened upper end portion of the container 200 to thereby prevent the liquid contents filled in the container 200 from spilling out. A sealing ring (not shown) may be provided on the outside of the container cap 300, the sealing ring maintaining sealing between the container cap 300 and the container 200 when the container cap 300 is coupled to the container 200 to thereby prevent the liquid contents from leaking between the container cap 300 and the container 200. The container cap 300 has a valve insertion part 330 which is formed in a central portion thereof and in which a valve unit to be described later is inserted, and the liquid contents are discharged through the central portion when the valve unit 500 is opened/closed.

The pressing holder 400 is inserted in the container 200 in a slidable manner to thereby press and push the liquid contents toward the discharging side of the container 200, that is, toward the container cap 300, such that the contents of the container 200 are smoothly discharged. The liquid contents are filled in the container 200 between the container cap 300 and the pressing holder 400.

The valve unit 500 is connected to the discharging side of the body 100 and the container cap 300 to thereby open/close the discharging hole 111, and adjusts the contents movement such that when the container 200 upwardly moves toward the discharging side, the liquid contents are discharged to the brush 710 positioned outside the body 100 through the discharging hole 111 of the body 100. This valve unit 500 allows the liquid contents to be discharged only when the container 200 is moved upward by rotating the rotary elevator part 600, and when the container 200 is not moved upward, the valve unit 500 blocks the discharge of the contents to thereby prevent the liquid contents from leaking when the contents are not used. In addition, when the contents are used, the valve unit 500 adjusts the discharging amount such that a certain amount of contents is discharged. The valve unit 500 is configured to include a valve nozzle 510, a sliding member 520, an elastic member 530, an opening/closing member 540, and a connector 550.

The rotary elevator part 600 is coupled to the lower end of the body 100 in a rotatable manner, and connected to the lower end of the container 200 through a cam structure, thereby upwardly moving the container 200 inside the body 100 during rotation.

The brush 710 is connected to the discharging side of the body 100 outside the body 100. A moving space is formed inside the brush 710 such that the liquid contents discharged from the body 100 may be moved. A lining 150 lengthily extending from the discharging hole 111 toward the outside is inserted in the inner moving space and thereby moves the liquid contents discharged from the body 100 to be evenly supplied inside the brush 710. In the present invention, an embodiment in which the cosmetic brush 710 is applied is exemplified, but the embodiment of the present invention is not limited thereto, and the portion of the brush 710 may also be replaced by a sponge ball (not shown) to be used.

The brush holder 720 is coupled to the discharging side of the body 100 to thereby support the cosmetic brush 710.

The lid 800 is coupled to the discharging side of the body 100 in a detachable manner, is separated from the body 100 to thereby allow the brush 710 to be exposed to the outside when the contents are used, and is coupled to the body 100 to thereby cover the brush 710 not to be exposed to the outside when the contents are not used.

FIG. 4 is a perspective view of the body illustrated in FIG. 2, and FIG. 5 is a longitudinal cross-sectional view of the body illustrated in FIG. 4.

As illustrated in FIGS. 4 and 5, the body 100 is formed in a hollow circular tube shape and includes: a container sliding part 110 in which the container 200 slides; a lid coupling part 120 which extends from the upper end of the sliding part 110, has inner and outer diameters smaller than the container sliding part 110, has a closed front surface, and has an outer side in which the lid 800 is inserted in a detachable manner; a hollow valve connecting part 130 which extends from the center of the front surface the lid coupling part 120 toward the inside of the lid coupling part 120, and to which the valve unit 500 is connected; a holder coupling part 140 which extends towards the outer front side of the lid coupling part 120 and has an outer side in which the brush holder 720 is inserted in a detachable manner; and a lining 150 which extends from the center of the front surface of the lid coupling part 120 toward the front side of the lid coupling part 120 and is inserted in a brush hole 711.

Rotation preventing ribs 110 a may radially protrude on an upper inner circumferential surface of the container sliding part 110 such that the valve unit 500 is not rotated together when the rotary elevator part 600 is operated.

A fixing protrusion 120 a on which the lid 800 is fixed by being hooked thereon may protrude on an outer side surface of the lid coupling part 120, and a fixing protrusion 130 a on which the brush holder 720 is hooked thereon may protrude on an outer side surface of the holder coupling part 140.

The valve connecting part 130 and the lining 150 are connected through the discharging hole 111.

In a lower end of an inner surface of the body 100, a rotary coupling groove 110 b is formed in an annular shape such that when the rotary elevator part 600 to be described later is coupled to the body 100 in a rotatable manner, a rotary coupling protrusion 610 a of the rotary elevator part 600 is inserted and coupled into the rotary coupling groove 110 b of the body 100.

FIG. 6 is a perspective view of the container illustrated in FIG. 2, FIG. 7 is a longitudinal cross-sectional view of the container illustrated in FIG. 6, and FIG. 8 is a side view illustrating portion A of FIG. 6.

As illustrated in FIGS. 6 and 8, the container 200 has a hollow circular tube shape having an opened upper end and a closed lower end, and has a space in which liquid contents may be filled.

A fixing protrusion 200 a is formed on an inner circumferential surface in the opened upper end portion of the container 200 such that the container cap 300 is forcibly coupled thereto. A release prevention protrusion 200 b is formed on a circumferential surface of the container 200 and prevents the container 200 from being easily released from the rotary elevator part 600 when a lower portion of the container 200 is inserted and coupled into the rotary elevator part 600.

The container 200 includes a cam part 210 in which a plurality of inclining teeth 211 are formed in a lower end of an outer side surface of the container 200 in a circumferential direction at regular intervals.

The inclining teeth 211 are formed in a triangular shape having a downwardly inclining surface 211 a and a vertical surface 211 b with respect to the rotating direction of the rotary elevator part 600. When the rotary elevator part 600 is rotated in one direction, a cam protrusion 611 formed on the inner circumferential surface of the rotary elevator part 600 upwardly moves the cam part 210 while contacting the downwardly inclining surface 211 a, and thereby, the container 200 is upwardly moved. Furthermore, when the cam protrusion 611 passes the inclining surface 211 a and is positioned on the vertical surface 211 b, the cam protrusion 611 downwardly moves the cam part 210, and thereby, the container 200 is downwardly moved.

FIG. 9 is a side view illustrating another example of portion A of FIG. 6.

As illustrated in FIG. 9, inclining teeth 212 are formed in a triangular shape having a downwardly inclining surface 212 a and an upwardly inclining surface 212 b with respect to a rotating direction of the rotary elevator part 600. When the rotary elevator part 600 is rotated in both leftward and rightward directions, a cam protrusion 611 formed on the inner circumferential surface of the rotary elevator part 600 upwardly moves the cam part 210 while contacting the downwardly inclining surface 212 b, and the container 200 is thereby moved up. Furthermore, the cam protrusion 611 passes the downwardly inclining surface 212 a and upwardly moves the cam part 210 while contacting the upwardly inclining surface 212 b, and thereby, the container 200 is downwardly moved.

FIG. 10 is a perspective view of the rotary elevator part illustrated in FIG. 2, FIG. 11 is a longitudinal cross-sectional view of the rotary elevator part illustrated in FIG. 10, and FIG. 12 is a plan view of the rotary elevator part illustrated in FIG. 10.

As illustrated in FIGS. 10 to 12, the rotary elevator part 600 is formed in a hollow circular tube shape having an opened upper end and a closed lower end. The outer diameter of the rotary elevator part 600 is formed to correspond to that of the body 100, and the inner diameter of the rotary elevator part 600 is formed to correspond to that of the container 200.

The rotary elevator part 600 has a rotation coupling part 610 the outer diameter of which is formed to correspond to the inner diameter of the opened lower end portion of the body 100, and which extends from the upper end of the rotary elevator part 600. The rotation coupling part 610 is inserted in the opened lower end portion of the body 100, and thereby, the rotary elevator part 600 is coupled to the lower end of the body 100 in a rotatable manner. In addition, a rotation coupling protrusion 610 a is formed in an annular shape in the outer circumferential surface of the rotation coupling part 610. Thus, when the rotation coupling part 610 in inserted in the opened lower end portion of the body 100, the rotation coupling protrusion 610 a is inserted in a rotation coupling groove 110 b formed in the lower end inner circumferential surface of the body 100, and thereby, the rotary elevator part 600 may be coupled to the lower end of the body 100 in a rotatable manner.

The rotary elevator part 600 is coupled to the container 200 such that the lower portion of the container 200 is inserted into the rotary elevator part 600 through an opened portion of the rotary elevator part 600. At this time, a release prevention step 610 b is formed on the upper end inner circumferential surface of the rotary elevator part 600. Accordingly, in a state in which the lower portion of the container 200 is inserted in the rotation elevator part 600, a release prevention protrusion 200 b formed on the outer circumferential surface of the container 200 is stopped by the release prevention step 610 b, and thus the container 200 inserted in the rotary elevator part 600 is not easily released from the rotary elevator part 600.

The rotary elevator part 600 has a plurality of cam protrusions 611 which are formed on a lower end of the inner circumferential surface thereof in the circumferential direction thereof at regular intervals so as to correspond to the inclining teeth 211 and 212 of the cam part 210. In the current embodiment, a configuration in which the cam protrusions 611 are formed in a linear cam protrusion shape inwardly protruding in the lengthwise direction of the rotary elevator part 600 is exemplified, but the embodiment of the present invention is not limited thereto, and the cam protrusions 611 may be formed in a cam part shape having inclining teeth which correspondingly cross the teeth 211 and 212 of the container cam part 210.

When the rotary elevator part 600 is rotated, the container 200 is vertically moved as the cam protrusions 611 moves the cam part 210 in the vertical direction through inclining contact between the cam protrusions 611 and the inclining teeth 211 and 212. For example, when the rotary elevator part 600 is rotated, upper ends of the cam protrusions 611 of the rotary elevator part 600 upwardly move the cam part 210 while contacting the downwardly inclining surfaces 211 a and 212 a of the container cam part 210, and thus the container 200 is upwardly moved. Furthermore, when the cam protrusions 611 pass the downwardly inclining surfaces 211 a and 212 a and are positioned on a vertical surface 211 b or upwardly inclining surface 212 b, the cam protrusions 611 downwardly move the cam part 210, and thus, the container 200 is downwardly moved.

FIG. 13 is a perspective view of the container cap illustrated in FIG. 2, and FIG. 14 is a longitudinal cross-sectional view of the container cap illustrated in FIG. 13.

As illustrated in FIGS. 13 and 14, the container cap 300 may include a forcible coupling part 310, a blocking plate 320, and a nozzle insertion part 330.

The forcible coupling part 310 is formed in a circular tube shape, has an undercut formed in an outer side thereof, and is thereby forcibly coupled inside the opened upper end of the container 200. An insertion prevention protrusion part 310 a, which has an annular shape and prevents the forcible coupling part 310 from being further inserted into the container 200, protrudes on a central side of an outer circumferential edge of the forcible coupling part 310. The undercut is formed only in a side of lower portion of the forcible coupling part 310 with respect to the insertion prevention protrusion part 310 a. Guide protrusions 310 b, which are inserted between the ribs 130 formed in the body 100 to thereby prevent the container cap 300 from being rotated in the body 100 and guide the container cap 300 to be slid, protrudes on an upper outer side of the forcible coupling part 310.

The blocking plate 320 vertically extends inward from the lower end of the forcible coupling part 310 and thereby prevents the contents filled in the container 200 from being discharged to the outside.

The nozzle insertion part 330 is formed on a central portion of the blocking plate 320 to extend forward and backward from the blocking plate 320 and perpendicular to the blocking plate 320 and is formed in a hollow shape, and thereby, a valve nozzle 510 of the valve unit 500 to be described later is inserted in the nozzle insertion part 330 in a slidable manner. An end portion which extends toward the backward side, that is, the outer side of the blocking plate 420 among both end portions of the nozzle insertion part 330, is formed to have a step, and thereby, the valve nozzle 510 is prevented from being released to the backward side of the blocking plate 320. A gap is formed between a step part 330 a of the nozzle insertion part 330 and the valve nozzle 510, and the contents filled in the container 200 is introduced into the nozzle insertion part 330 through the gap. A stopping protrusion part 330 b, by which the sliding member 520 of the valve unit 500 to be described later is stopped, protrudes on an outer side of the end positioned inside the blocking plate 320 among both end portions of the nozzle insertion part 330.

FIG. 15 is a longitudinal cross-sectional view of the pressing holder illustrated in FIG. 2.

As illustrated in FIG. 15, the pressing holder 400 includes a pressing part 410 which is inserted in the container 200 and presses the contents toward the discharging side of the body 100, and a contact part 420 formed on edges of the pressing part 410 and contacting the inner circumferential surface of the container 200 in a slidable manner. The contact part 420 is formed in a shape in which a central portion thereof is recessed toward the central side of the pressing part 410 with respect to both end portions. Thus, the central portion of the contact part 420 does not contact the inner circumferential surface of the container 200 and only both end portions contact the inner circumferential surface of the container 200 in a slidable manner.

FIG. 16 is a perspective view of the valve nozzle illustrated in FIG. 2, and FIG. 17 is a longitudinal cross-sectional view of the valve nozzle illustrated in FIG. 16.

As illustrated in FIGS. 16 and 17, the valve nozzle 510 is provided to pass through the nozzle insertion part 330 of the container cap 300 in a vertically movable manner, and includes a nozzle body 511 and an annular protrusion part 512.

The nozzle body 511 has a nozzle hole which has an opened upper end and is lengthily formed inside the nozzle body 511, and an introduction hole 511 b which is formed on a side portion of the nozzle body 511 and connected to the nozzle hole 511 a. The nozzle hole 511 a is connected to the discharging hole 111 of the body 100 through the connector 550 and moves the liquid contents to the discharging hole 111. The introduction hole 511 b allows the contents introduced in the nozzle insertion part 330 through the gap between the nozzle insertion part 330 of the container cap 300 and the valve nozzle 510 to be introduced in the nozzle hole 511 a.

The annular protrusion part 512 is formed at a position spaced apart toward the closed lower end of the nozzle body 511 from the introducing hole 511 b in the side portion of the nozzle body 511, and restrains sliding such that the step part 330 a formed in the nozzle insertion part 330 of the container cap 300 is stopped by the annular protrusion part 512 such that the container cap 300 is not further slid forward.

The annular protrusion part 512 has a plurality of fine holes 512 a through which the liquid contents introduced between the lower end portion of the nozzle body 511 and the container cap 300 pass through and which are spaced apart from each other.

FIG. 18 is a longitudinal cross-sectional view of the sliding member illustrated in FIG. 2.

As illustrated in FIG. 18, the sliding member 520 is supported by the connector 550 through an elastic member 530, such as a spring, and includes: a sliding part 521 which has a circular tube shape inserted in the outer side of the connector 550 in a slidable manner; and an insertion part 522 which extends from the outer side of the sliding part 521 towards the lower end of the sliding member 520 in a bent manner and allows the nozzle insertion part 330 of the container cap 300 to be inserted between the insertion part 522 and the lower end of the sliding part 521.

The upper end portion of a portion positioned inside the container cap 300 among both end portions of the nozzle insertion part 330 is inserted in the insertion part 522. The upper end portion of the elastic member 530 is supported by the connector while contacting the connector 550, and the lower portion of the elastic member 530 is inserted in the upper end portion of the sliding part 521 and contact the insertion part 522 to be supported by the insertion part 522.

The sliding member 520 is slided by being pushed toward the discharging hole 111 of the body 100 by the container cap 300 which is moved together with the container 200 when a user rotates the rotary elevator part 600 and the container 200 is thereby upwardly moved by the operation of the cam part 210. Also, while being returned to an original state by the recovering force of the elastic member 530, the sliding member 520 pushes the container cap 300, the container 200 and the opening/closing member 540 so as to return the container cap 300, the container 200 and the opening/closing member 540 to original states.

A stopping protrusion part 522 a, which allows the sliding member 520 to be stopped by the stopping protrusion part 330 b of the nozzle insertion part 330 to be engaged and slided together with the container cap 300, protrudes on the inner side surface of the insertion part 522.

FIG. 19 is a side view of the opening/closing member illustrated in FIG. 2, and FIG. 20 is a longitudinal cross-sectional view of the opening/closing member illustrated in FIG. 19.

As illustrated in FIGS. 19 and 20, the opening/closing member 540 is inserted in the outer side of the nozzle body 511 in a movable manner and associatively moved with the container 200 and the container cap 300 such that: when the sliding member 520 is slided toward the discharging hole 111 of the body 100, the opening/closing member 540 is pushed toward the discharging hole 111 by a pressure of the contents introduced between the container cap 300 and the nozzle body 511 and thereby opens the introducing hole 511 b of the nozzle body 511; and when the sliding member 520 is returned to the original state, the opening/closing member 540 is pushed by the sliding member 520 and blocks the introducing hole 511 b while being returned to the original state. At this time, the opening/closing member 540 is inserted, in a movable manner, in a portion in which the introducing hole 511 b is formed with respect to the annular protrusion part 512 of the nozzle body 511.

When the sliding member 520 is returned to the original state, the opening/closing member 540 is slided only until contacting the annular protrusion part 512 of the valve nozzle 510, and is prevented from being further slided by the annular protrusion part 512. In addition, the sliding member 520, the container cap 300 and the container 200 are also prevented from being slided.

The opening/closing member 540 includes a hollow opening/closing part 541 inserted in the outer side of the nozzle body 511, and a contact part 542 which extends on the outer side of the opening/closing part 541 and contacts the inside of the nozzle insertion part 330 of the container cap 300 in a slidable manner.

A gap groove 541 a which forms a gap without contacting the nozzle body 511 is formed on a side of the annular protrusion part 512 of the valve nozzle 510 in the inner circumferential surface of the opening/closing part 541. Accordingly, when the opening/closing part 541 is slid toward the discharging hole 111 and the gap groove 541 a overlaps the introducing hole 511 b, the contents introduced in the gap groove 541 a is introduced in the nozzle hole 511 a through the introducing hole 511 b. Conversely, when the opening/closing part 541 is slided toward the annular protrusion part 512 and the positions of the gap groove 541 a and the introducing hole 511 b are dislocated, the contents are prevented from being introduced through the introducing hole 511 b by means of the inner circumferential surface of the opening/closing part 541, the inner circumferential surface contacting the nozzle body 511.

The contact part 542 is formed in a shape in which a central portion is recessed toward the inside of the opening/closing part 541 with respect to both end portions. Accordingly, the central portion of the contact part 542 does not contact the inner circumferential surface of the nozzle insertion part 330 and only both end portions of the contact part 542 contacts the inner circumferential surface of the nozzle insertion part 330 in a slidable manner.

FIG. 21 is a longitudinal cross-sectional view of the connector illustrated in FIG. 2.

As illustrated in FIG. 21, the connector 550 connects, in the body 100, the discharging hole 111 and the valve nozzle 510, supports the elastic member 530, and includes a connecting part 551 and an elastic member supporting part 520.

The connecting part 551 is formed in a hollow tube shape, and has an upper end portion inserted and fixed into the valve connecting part 130 of the body 100 and a lower end portion into which the opened upper end of the nozzle body 511 is inserted and fixed. The elastic member 530 is inserted in the outer side on the lower end portion of the connecting part 551.

The elastic member supporting part 552 extends on the outer side of the connecting part 551 and supports the elastic member 530, and forms an elastic member inserting groove 552 a between the elastic member supporting part 552 and the connecting part 551.

FIG. 22 is a cross-sectional view illustrating a state in which contents in a liquid cosmetic case according to an embodiment of the present invention are discharged.

As illustrated in FIG. 22, when a user rotates a rotary elevator part 600, cam protrusions 611 formed on a lower end inner circumferential surface of the rotary elevator part 600 upwardly move the cam part 210 while contacting a downwardly inclining surface 211 a of a cam part 210 formed on a lower end outer circumferential surface of a container 200. Accordingly, the container 200 and a container cap 300 are slided toward a discharging hole 111. In this process, a sliding member 520 of a valve unit 500 is also slided toward the discharging hole 111 by being pushed by the container cap 300.

As such, when a sliding member 520 is slided toward the discharging hole 111 and the force pressing a opening/closing member 540 is released, the opening/closing member 540 is also slided toward the discharging hole 111 by the pressure of the contents applied to the opening/closing member 540 through fine holes 512 a formed in an annular protrusion part 512 of a valve nozzle 510.

That is, since there is a gap between a nozzle insertion part 330 of the container cap 300 and a nozzle body 511 of the valve nozzle 510, liquid contents are filled in the gap and the liquid contents also contact the opening/closing member 540 through the fine holes 512 a of the annular protrusion part 512. Therefore, the opening/closing member 540 is always in a state of being pressed by the liquid contents. Accordingly, as described above, when the pressure of the sliding member 520 pressing the opening/closing member 540 is released, the opening/closing member 540 is slided toward the discharging hole 111 of the body 100 by the pressure of the contents.

When the opening/closing member 540 is slided to the discharging hole 111 and thereby a gap groove 541 formed inside the opening/closing part 541 and an introducing hole 511 b formed in the nozzle body 511 coincide with each other, the liquid contents are introduced in a nozzle hole 511 a through the gap groove 541 a and the introducing hole 511 b.

The contents introduced in the nozzle hole 511 a is moved to a lining 150 through a connector 550 connected to the nozzle body 511 and a valve connecting part 130 of the body 100, and is supplied to a brush 710.

FIG. 23 is a cross-sectional view illustrating a state in which the contents in a liquid cosmetic case according to an embodiment of the present invention are blocked.

As illustrated in FIG. 23, when a user further rotates the rotary elevator part 600 and a cam protrusion 611 passes a lowermost end of a inclining surface 211 a of a cam part 210 and is positioned in parallel with a vertical surface 211 b, a container 200 and a container cap 300 are slided toward the opposite side to a discharging hole 111 in a body 100, as a cam part 210 is downwardly moved by a recovering force of an elastic member 530. In this process, a sliding member 520 of a valve unit 500 is slided toward the opposite side of the discharging hole 111, and an opening/closing member 540 is also slided by being pushed by the sliding member 520 until contacting an annular protrusion part 512 of a valve nozzle 510.

As such, when the opening/closing member 540 contacts the annular protrusion part 512 of the valve nozzle 510, a gap groove 541 a of the opening/closing member 540 and an introducing hole 511 b of a nozzle body 511 are dislocated, and thus the introducing hole 511 b is blocked by the opening/closing member 540. Accordingly, since the contents are prevented from being introduced through the introducing hole 511 b, the content discharge is stopped.

At this time, although the pressure from the contents is continuously applied to the opening/closing member 540, since the pressure by which the sliding member 520 pushes the opening/closing member 540 is greater than the pressure from the contents, the opening/closing member 540 maintains a state of contacting the annular protrusion part 512 and thereby blocking the introducing hole 511 b.

As such, it is possible to prevent the liquid contents from leaking when the contents are not used, because the moving passage of the contents is completely blocked by the opening/closing member 540 when the contents are not used.

According to the liquid cosmetic case of the present invention, when a user rotates a rotary elevator part 600, a container 200 is moved up and down through a cam structure between the rotary elevator part 600 and the container 200 and thereby a valve nozzle 510 opens/closes a discharging hole 111 in association with the up-and-down movement of the container 200. Thus, the liquid cosmetic case is very convenient in use because the discharge and blocking of the liquid contents may be simply adjusted. In addition, the present invention applies a valve type in which the discharging hole 111 is opened/closed through the valve nozzle 510, thereby has an excellent sealing property because a discharging portion is always sealed, and may be applied to all liquid contents regardless of viscosity of the liquid contents. In addition, the valve-type liquid cosmetic case has a structure simpler than those of the button-type and rotary type liquid cosmetic cases and a reduced manufacturing cost, and may minimize failure and malfunction.

A liquid cosmetic case according to the present invention has the following effects.

First, according to the present invention, when a user rotates a rotary elevator part, a container is moved up and down through a cam structure between the rotary elevator part and the container and thereby a valve nozzle opens/closes a discharging hole in association with the up-and-down movement of the container. Thus, it is very convenient in use because the discharge and blocking of the liquid contents may be simply adjusted.

Secondly, the present invention applies a valve type in which the discharging hole is opened/closed through the valve nozzle and thus, the present invention has a discharging portion which is always sealed and an excellent sealing property and may be applied to all liquid contents regardless of viscosity of the liquid contents.

Thirdly, the present invention applies the valve-type liquid cosmetic case, which has a structure simpler than those of the button-type and rotary type liquid cosmetic cases and a reduced manufacturing cost, and in which failure and malfunction may be minimized.

The above-disclosed subject matter is to be considered illustrative and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments, which fall within the true spirit and scope of the present invention. Thus, to the maximum extent allowed by law, the scope of the present invention is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description. Therefore, the above-described embodiments are illustrative in all the aspects, and should be construed as not being limitative. The scope of the present utility model is defined not by the detailed description of the invention but by the appended claims, and all modifications and changes induced from the spirit and scope of the utility model and the equivalent concept will be construed as being included in the present utility model. 

What is claimed is:
 1. A liquid cosmetic case comprising: a body configured such that liquid contents are discharged through a discharging hole; a container which is inserted into the body through a lower end opening portion of the body in a slidable manner and in which the liquid contents are filled; a container cap coupled to an upper end of the container; a valve unit connected to a discharging side of the body and the container cap to open/close the discharging hole and provided with an opening/closing member slided in association with the container and the container cap; and a rotary elevator part coupled to the lower end of the body, connected to a lower end of the container and thereby vertically moving the container when being rotated, wherein when the rotary elevator part is rotated to move the container upwardly, the opening/closing member opens a moving passage of the contents and the contents are thereby discharged, and when the container is downwardly moved, the opening/closing member closes the moving passage of the contents and the contents are thereby prevented from being discharged.
 2. The liquid cosmetic case of claim 1, wherein the body has a rotary coupling groove formed in an annular shape in a lower end of an inner side surface of the body, and the rotary elevator part has a rotary coupling protrusion inserted and coupled into the rotary coupling groove and formed in an annular shape, wherein the rotary elevator part is coupled to the body in a rotatable manner.
 3. The liquid cosmetic case of claim 1, wherein the rotary elevator part is configured to have a circular tube shape having an opened upper portion, and a lower portion of the container is inserted and coupled into the rotary elevator part through the opened portion of the rotary elevator part.
 4. The liquid cosmetic case of claim 3, wherein the container comprises a cam part in which a plurality of inclining teeth are formed on a lower end of an outer side surface in a circumferential direction thereof at regular intervals, and the rotary elevator part comprises a plurality of cam protrusions formed on a lower end of an inner circumferential surface thereof so as to correspond to the inclining teeth, wherein when the rotary elevator part is rotated, the container is moved up and down as the cam protrusions move the cam part in an up-and-down direction through inclining contact with the inclining teeth.
 5. The liquid cosmetic case of claim 4, wherein the inclining teeth are formed in a triangular shape having a downwardly inclining surface and a vertical surface with respect to a rotating direction of the rotary elevator part, wherein when the rotary elevator part is rotated in one direction, the container is slided toward the discharging hole as the cam protrusions contact the downwardly inclining surface to thereby upwardly move the cam part, and the container is slided toward an opposite side to the discharging hole as the cam protrusions pass the inclining surface and is positioned in parallel with the vertical surface to thereby downwardly move the cam part.
 6. The liquid cosmetic case of claim 4, wherein the inclining teeth are formed in a triangular shape having a downwardly inclining surface and an upwardly inclining surface with respect to the rotating direction of the rotary elevator part, wherein when the rotary elevator part is rotated in both directions, the container is slided toward the discharging hole as the cam protrusions contact the downwardly inclining surface to thereby upwardly move the cam part, and the container is slided toward an opposite side to the discharging hole as the cam protrusions pass the downwardly inclining surface and contact the upwardly inclining surface to thereby downwardly move the cam part.
 7. The liquid cosmetic case of claim 1, wherein the valve unit comprises: a valve nozzle installed to pass through the container cap in a vertically movable manner, having a nozzle hole formed therein and connected to the discharging hole, and having an introducing hole formed in a side portion thereof and connected to the nozzle hole so as to allow the contents to be introduced in the nozzle hole; a sliding member inserted and coupled into the outer side of the valve nozzle and slided toward the discharging hole by being pushed by the container cap when the container and the container cap are slided toward the discharging hole; an elastic member installed to elastically support the sliding member against the discharging hole side and returning the sliding member to an original state when force pushing the container and the container cap is released; and an opening/closing member coupled to an outer side of the valve nozzle in a movable manner, opening the introducing hole by being pushed toward the discharging hole by a pressure of the contents introduced between the container cap and the valve nozzle when the sliding member is slided toward the discharging hole, and closing the introducing hole while being returned to the original state by being pushed by the sliding member when the sliding member is returned to the original state. 